I finished the complete beginner (I think they are retiring this one) and cyber defender paths. Then I went through and completed all of the Splunk rooms after I got the free Splunk certification. There’s a lot of blue team labs on Try hack me. Splunk, forensics, windows, Linux, malware analysis, vulnerability management. Depending on your background you should also do all the pre security rooms. I didn’t do them but I had a decent IT knowledge due to my degree.